Performer gets new couch (5)
I believe the answer is:
divan
'couch' is the definition.
(I know that divan is a type of couch)
'performer gets new' is the wordplay.
'performer' becomes 'diva' (diva is a kind of performer).
'gets' means one lot of letters go next to another.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'diva'+'n'='DIVAN'
(Other definitions for divan that I've seen before include "Backless seat; bed" , "resting place" , "Sofa - bed" , "Sort of bed" , "Sideless, backless couch" .)